diff --git a/board/phytium/common/debian-package-installer b/board/phytium/common/debian-package-installer
index fcdab92b020249e84328e97afb56e9f045e78a2a..7098be4a9c91aa8306c7b9ebe2dccd57d820ec9d 100755
--- a/board/phytium/common/debian-package-installer
+++ b/board/phytium/common/debian-package-installer
@@ -30,7 +30,7 @@ do_distrorfs_second_stage() {
     cat <<-EOF > $asl
 	deb http://mirrors.tuna.tsinghua.edu.cn/debian/ bullseye main contrib non-free
 	deb http://mirrors.tuna.tsinghua.edu.cn/debian/ bullseye-updates main contrib non-free
-	deb http://mirrors.tuna.tsinghua.edu.cn/debian/ bullseye-backports main contrib non-free
+	#deb http://mirrors.tuna.tsinghua.edu.cn/debian/ bullseye-backports main contrib non-free
 	deb http://mirrors.tuna.tsinghua.edu.cn/debian-security bullseye-security main contrib non-free
 	EOF
     chmod +777 /tmp